Grinding-mill



(No ModeL) J. & W. L. BEALL GRINDING MILL.

Patented May 5; 1885.

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UNITED STATES PATENT ()FFICE.

JOHN BEALL AND WILLIAM L. BEALL, OF DECATUR, ILLINOIS.

GRINDING-MILL.

SPECIFICATION forming part of Letters Patent No. 316,936, dated May 5, 1885.

Application filed February 510, 1884.

To all whom it may concern-.-

Be it known that we, JOHN BEALL and WILLIAM L. BEALL, residents of the city of Decatur, county of Macon and State of Illinois, have invented certain new and useful Improvements in Mills for Grinding Oil-Cake, of which the following is a specification.

Our invention consists in certain details of construction and combination of parts, which will be fully hereinafter described and claimed.

In the drawings accompanying and forming a part of this-specification, Figure 1 is a side view of our machine, the casing being broken to show the crushing and grinding mechanism. Fig. 2 is a vertical section of Fig. 1 on dotted line 00 m. Fig. 3 is a side View of one of the crushing-rings of which the roll is composed, and Fig. 4 is an edge view of'the same. Figs. 5, 6, 7, and 8 represent the various parts of the grindingcylinder, and Fig. 9 is an end view of said cylinder and opposing concave surface.

a is a ring of the crushing-roll, provided with points a and cutting-edges a.

brepresents parallel surfaces for guiding oilcake to the crushers.

0 represents annular grinding-rings.

c 0 represent the two halves of the cylinder,

on which grinding-rings c are mounted.

c is a tapering shaft that passes through the central opening formed in the two halves of cylinder 0 c, and secures the rings 0 thereon by spreading the said halves apart.

d is a screw for adjusting slide d with reference to the grinding-cylinder.

f is a screw for adjusting concave surface c with reference to the cylinder above mentioned.

The crushing-rings a are arranged on parallel shafts, asindicated in Fig. 2, the projections of one roller opposing interstices of the other. As shown in the drawings, there are two pairs of crushing-rolls, the projections on one pair being larger than those on the other; but this arrangement is not in all cases necessary, as one set of crushers will generally be found sufficient.

g g are sets of gearing that connect the shafts of the pairs of crushing-rolls.

h is a drive-wheel.

t is a pinion that conveys the motion of the drive-wheel to wheel 70.

(No model.)

firmly secured by the internal pressure when the said shaft is secured from lateral misplacement by nut c.

p is a casing that incloses the crushing mechanism, and r represents the hopper of the grinding-cylinder.

In operation the oil-cake or other material is fed into the upper pair of crushers through guide-plates b. After passing through the crushers, the material falls into the receptacle formed by the sides of the hopperr, the cylinder 0, and slide (1, where it is constantly agitated by the centrifugal force of the cylinder.

The slide d, as indicated in Fig. 2, is located at the lowest extremity of the receptacle above mentioned, and is adapted to act as a feed-regulator.

We claim as new and desire to secure by Letters Patent- 1. The grinding-machine herein described, consisting in the combination of a horizontal grinding-cylinder, a hopper located above said cylinder and extended down and around the same to a horizontal line extending through the center thereof, a sliding cut-off located at the lowest extremity of the hopper, and an adjusta-ble concave surface opposed to the lower surface of the grinding-cylinder, as and for the purpose set forth.

2. The hcreirrdescribed grindingmill, comprising the casing 19, the guide-plates b, the sets of rolls a, the hopper r, cylinder a, cut-off d, and concave e, substantially as set forth.

3. The grinding cylinder or roll formed of parts 0 c, grinding-rings c, threaded tapering shaft 0, and nut 0, as and for the purpose set forth.

Attest:

I. D. WALKER, L. P. GRAHAM. 

